Narkewa kamar tsarin - tushen da m aiki na dukan jikin mutum

Narkewa kamar tsarin damar adam aiki saboda da bayarwa na zama dole na gina jiki amfani da matsayin makamashi Madogararsa da kuma wani gini abu. Wadannan abubuwa shiga jiki ta hanyar narkewa kamar fili, a total tsawon game da mita 10, kuma da ciwon a ko'ina cikin fa] a da kuma ƙanƙancewa na kogo.

A tsarin da mutum narkewa kamar tsarin sun hada da: buccal rami, pharynx, esophagus, ciki, pancreas, hanta, gallbladder, ciwon da kananan hanji.

Baka rami. A wannan bangare na narkewa kamar tsarin faruwa kai tsaye assaying abinci, daukan hotuna zuwa ta sinadaran da jiki sakamakon. Taban da ake abinci nasa ne da na biyu da irin tasiri, kuma wannan matakin farko na aiki da tsarin dogara a kan ingancin samu da kuma assimilation na gina jiki. Ba tare da dalili, kwararru da yawa shawara yadda za a tauna abinci, to, wanda aka fallasa da yau kafa a bolus.

Yau sanya fairly muhimmiyar rawa a cikin narkewa abinci. An kunsa kusan gaba ɗaya na ruwa (game da 99%). Žunsa mucin gina jiki na taimaka wa adhesiveness, gaban lysozyme damar decontamination abinci da kuma enzymes kamar amylase da maltase narkewar gina jiki.

A haltta na narkewa kamar tsarin ya nuna cewa jiki wadannan da na baka pharynx ne, wanda shi ne mai murdede sashin jiki tare da wasu ramukan (baka rami, hanci bayanai, da bayanai zuwa esophagus da maƙogwaro, da kuma biyu bututu na tsakiyar kunne). Exposure, saboda spillage abinci a cikin numfashi hanya, ƙofar maƙogwaro aka rufe da epiglottis.

A sosai aiwatar da hadiya abinci ne saboda da akan rage tsokoki na pharynx, ta hanyar abin da ta shiga cikin esophagus kuma ta hanyar da diaphragm - ciki. Tun da esophagus - a murdede tube cewa saboda da akan rage wadannan tsokoki da abinci da aka tura a.

Narkewa kamar tsarin hada da ciki, wanda aka located kasa da diaphragm a cikin sama ciki. Nature biyu cikinsu takware bayar - shigar da fitarwa. Na biyu obturator rufe isasshe da karfi tsoka (sphincter). Abinci an riƙe a ciki na dogon lokaci (har zuwa 11 hours), wanda aka hõre sinadaran hari na ciki ruwan 'ya'yan itace, wanda yake shi ne colorless ruwa dauke da hydrochloric acid. Shi ne ta hanyar wannan bangaren da aka kai tsaye yi narkewa kamar aiki. Acid ne ma a yankunan da tasiri a kan ingested kwayoyin. Saboda haka, hadarin ƙulla cututtuka bayyana a taron na cututtuka na gastrointestinal fili, wanda sun shige ta hanyar narkewa kamar tsarin.

A sakamakon chyme daga ciki ta sphincter rabo hankali shiga cikin hanji. The kananan hanji yana farawa da duodenum, wanda ya bude da na kowa bile bututu da kuma pancreatic bututu. A nan ya zo ƙarshen narkewa abinci da aikin na pancreatic ruwan 'ya'yan itace da bile.

sarrafa abinci daga kananan hanji hankali ya wuce a cikin ciwon, wanda yana da tsawon mita 2. Akwai iskar tunawa ruwa, da kuma rage na dole ba abinci riga shafe ta daga jiki. Saboda da manyan yawan daban-daban kwayoyin cuta a cikin Gut, inganta narkewa. Duk da haka, akwai korau al'amurran. Saboda haka, a karkashin mataki na kananan kwayoyin halitta suna halakar da riga ba dole ba abinci da kuma saki mai guba mahadi domin kawar da wanda yayi dace da hanta.

Narkewa kamar System sanya wani hanta da gagarumar rawar. Bayan duk, wannan shi ne babbar narkewa kamar gland shine yake ta hanyar da tsabtace da kuma duk venous jini daga ciki, saifa, kuma hanjinsu.

Saboda haka, da narkewa kamar tsarin - a wajen hadadden tsari na abinci aiki a jikin mutum, kowane sashen da ake sa rawa, da kuma gazawar da a kalla daya bangaren na inji zai iya ci gaba cututtuka na gastrointestinal fili.